<script setup>
import { h, render } from 'vue'

let div = h('div', { class: 'box' }, [
  h('p', '这是添加的内容')
])
render(div, document.body)
</script>

<template>

</template>

<style>
.box {
  width: 100px;
  height: 100px;
  background-color: aqua;
}
</style>
